CONTROL OF LEAF-SPOT DISEASES OF ALFALFA AND TOMATO WITH APPLICATIONS OF THE BACTERIAL PREDATOR PSEUDOMONAS STRAIN 679-2

被引：7

作者：

CASIDA, LE ^{[1
]}

LUKEZIC, FL ^{[1
]}

机构：

[1] PENN STATE UNIV,DEPT PLANT PATHOL,UNIV PK,PA 16802

来源：

PLANT DISEASE | 1992年 / 76卷 / 12期

关键词：

D O I：

10.1094/PD-76-1217

中图分类号：

Q94 [植物学];

学科分类号：

071001 ;

摘要：

Pseudomonas strain 679-2 is a unique, highly competitive, nonobligate bacterial predator originally isolated from soil. Application of its cells to tomato and alfalfa provided a reduction in the severity of the leaf spot diseases caused by Alternaria solani, Pseudopeziza medicaginis, Phoma medicaginis, and Stemphylium botryosum. The treatment produced no adverse effects on the plants. Strain 679-2 produces a water-soluble compound that inhibited these fungi, but the role of the compound in the interaction was not determined. Application of a copper fungicide to the leaves with the bacteria did not interfere with activity of strain 679-2. Although strain 679-2 survived well on the leaves and in soil, it could be programmed by culture techniques for early mortality in order to reduce unwanted environmental exposure.

引用

页码：1217 / 1220

页数：4

共 9 条

[1]

Arnon DI, 1940, SOIL SCI, V50, P463

[2] RELATION TO COPPER OF N-1, A NONOBLIGATE BACTERIAL PREDATOR [J].